[ใหม่] Mitsubishi HC4000 300-Inch 1080p Front Projector (Black)

621 สัปดาห์ ที่แล้ว - กรุงเทพมหานคร - คนดู 248

85,245 ฿

For many theater installs, the HC4000 will be the best 1080p projector in its price range. Epson's 8350 is a strong alternative.

My projector is an HC3800. The HC4000 is functionally identical save for an improved DLP chip that yields slightly lower maximum brightness and somewhat higher ANSI contrast. There appear to be no other differences in the manual or elsewhere. My impressions of the HC3800 should therefore apply wholesale to this model. My testing area is a light-controlled room with a 12' x 5' 2.39:1 WilsonArt Designer White screen with 1.2 gain. The throw distance from the lens to the screen is around 16'.

Before diving into the main review, I've listed some background issues:

PROJECTOR SPECIFICATIONS:

Three key specifications of any projector are lumen output, ANSI contrast, and absolute black levels. Lumen output dictates how well the projector will handle ambient light and large screen sizes without washing out or becoming uncomfortably dim. ANSI contrast measures dynamic range, or the brightest and darkest tones the projector can display at the same time. The 'punch' of an image with bright lights and dark shadows is heavily dependent on ANSI contrast. Lower ANSI numbers imply a flatter image with grayer blacks. Finally, low absolute black levels ensure that in completely dark scenes, black appears black and not a dark slate. Room preparation affects the relative importance of these attributes; ambient light and reflected light from nearby surfaces can negate differences in black levels and ANSI contrast.

Beyond image quality, certain features aid in placement flexibility. A generous zoom range allows the projector to display a range of image sizes from a particular position, or the same image size while moving the projector. Lens shift allows the projected image to be moved without moving the projector or incurring keystone distortion. These features are more common in LCD projectors than DLP. More expensive projectors can have motorized or automated lens shift, which is helpful if the projector is placed in an inaccessible location or constantly switching aspect ratios.





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